<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>ajax</title>
</head>
<body>
	<script type="text/javascript">
		function ajax(url,callback){
			var variable = new XMLHttpRequest();
			var xmlhttp;
			if (window.XMLHttpRequest)
			  {// code for IE7+, Firefox, Chrome, Opera, Safari
			  	xmlhttp=new XMLHttpRequest();
			  }
			else
			  {// code for IE6, IE5
			  	xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
			 }
			xmlhttp.open("GET",url,true);
			xmlhttp.send();
			xmlhttp.onreadystatechange=function()
			  {
			  if (xmlhttp.readyState==4 && xmlhttp.status==200)
			    {
			    	callback(xmlhttp.responseText);
			    }
			  }
		}
		ajax("http://wxoauth.wucai.com/wxVideoT/index.php/Home/Index/tongji",function(data){
			console.log(data);
		});
	</script>
</body>
</html>